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Aaron Durbin 0284f62db2 drivers/elog: sync events to non-volatile storage last
There were multiple paths where writes and erases of the flash
were being done. Instead provide a single place for synchronizing
the non-volatile storage from the mirrored event log. This
synchronization point resides as the very last thing done when
adding an event to the log. The shrinking check happens before
committing the event to non-volatile storage so there's no need
to attempt a shrink in elog_init() because any previous events
committed already honored the full threshold.

BUG=chrome-os-partner:55932

Change-Id: Iaec9480eb3116fdc2f823c25d028a4cfb65a6eaf
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16099
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-09 17:46:06 +02:00
3rdparty 3rdparty/vboot: update to latest master 2016-08-04 23:22:36 +02:00
Documentation Documentation: Capitalize RAM, ROM and ACPI 2016-07-28 20:03:36 +02:00
payloads payloads: add Kconfig option for bayou 2016-08-09 10:44:44 +02:00
src drivers/elog: sync events to non-volatile storage last 2016-08-09 17:46:06 +02:00
util flashmap: Allocate at least one entry in kv_pair_new() 2016-08-09 15:00:50 +02:00
.checkpatch.conf checkpatch: Add BLOCK_COMMENT_STYLE to ignore list 2016-08-05 00:01:55 +02:00
.clang-format Provide coreboot coding style formalisation file for clang-format 2015-11-10 00:49:03 +01:00
.gitignore .gitignore: Ignore Python object files 2016-08-01 09:50:48 +02:00
.gitmodules git modules: rename git submodules to avoid hierarchies 2016-02-11 20:55:55 +01:00
.gitreview
COPYING
MAINTAINERS MAINTAINERS: Add myself as tpm support maintainer. 2016-07-07 17:04:29 +02:00
Makefile Makefile: Include $(top) in DOTCONFIG definition to allow override 2016-07-28 20:27:42 +02:00
Makefile.inc build system: drop commented out code 2016-08-09 08:39:16 +02:00
README Remove extra newlines from the end of all coreboot files. 2016-07-31 18:19:33 +02:00
toolchain.inc toolchain.inc: Update 'required toolchain' error text 2016-08-04 21:48:27 +02:00

-------------------------------------------------------------------------------
coreboot README
-------------------------------------------------------------------------------

coreboot is a Free Software project aimed at replacing the proprietary BIOS
(firmware) found in most computers.  coreboot performs a little bit of
hardware initialization and then executes additional boot logic, called a
payload.

With the separation of hardware initialization and later boot logic,
coreboot can scale from specialized applications that run directly
firmware, run operating systems in flash, load custom
bootloaders, or implement firmware standards, like PC BIOS services or
UEFI. This allows for systems to only include the features necessary
in the target application, reducing the amount of code and flash space
required.

coreboot was formerly known as LinuxBIOS.


Payloads
--------

After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot.

See http://www.coreboot.org/Payloads for a list of supported payloads.


Supported Hardware
------------------

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

 * http://www.coreboot.org/Supported_Motherboards
 * http://www.coreboot.org/Supported_Chipsets_and_Devices


Build Requirements
------------------

 * make
 * gcc / g++
   Because Linux distribution compilers tend to use lots of patches. coreboot
   does lots of "unusual" things in its build system, some of which break due
   to those patches, sometimes by gcc aborting, sometimes - and that's worse -
   by generating broken object code.
   Two options: use our toolchain (eg. make crosstools-i386) or enable the
   ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this
   case).
 * iasl (for targets with ACPI support)

Optional:

 * doxygen (for generating/viewing documentation)
 * gdb (for better debugging facilities on some targets)
 * ncurses (for 'make menuconfig' and 'make nconfig')
 * flex and bison (for regenerating parsers)


Building coreboot
-----------------

Please consult http://www.coreboot.org/Build_HOWTO for details.


Testing coreboot Without Modifying Your Hardware
------------------------------------------------

If you want to test coreboot without any risks before you really decide
to use it on your hardware, you can use the QEMU system emulator to run
coreboot virtually in QEMU.

Please see http://www.coreboot.org/QEMU for details.


Website and Mailing List
------------------------

Further details on the project, a FAQ, many HOWTOs, news, development
guidelines and more can be found on the coreboot website:

  http://www.coreboot.org

You can contact us directly on the coreboot mailing list:

  http://www.coreboot.org/Mailinglist


Copyright and License
---------------------

The copyright on coreboot is owned by quite a large number of individual
developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL).
Some files are licensed under the "GPL (version 2, or any later version)",
and some files are licensed under the "GPL, version 2". For some parts, which
were derived from other projects, other (GPL-compatible) licenses may apply.
Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.